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The Science of Galactic Astronomy
Galactic astronomy is the science which deals with analysis of the various components and of the Milky Way in which the solar system with the nine planet including Earth itself is located.
Galactic Astronomy
The science that deals with the study of stars as well as the processes of their formation is referred to as stellar astronomy. Since the space wars between the United States and the erstwhile Soviet Union which began in the fifties decade, stellar astronomy has progressed in leaps and bounds. This rapid advancement in knowledge is attributed to the development of space technology which has provided valuable insights into the universe.
Stars are formed in a particular region of the interstellar medium known as giant molecular clouds when acted upon by gravitational forces. This leads to the formation of a protostar. When the protostar acquires an adequate amount of mass, density and heat, nuclear fusion is initiated within its core leading to the formation of a main sequence star.
The attributes as well as the fate of the resultant star are governed by its initial mass. Mass of stars which exceeds the mass of the Sun by eight times as much eventually collapses in a brilliant spectacle called supernova. Black holes are formed when the mass of the star is three times the mass of the Sun. The Sun itself will end by becoming a planetary nebula which will provide many synthesized materials to the interstellar medium.
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